This trail branches off the Ice Glen Trail
, just after the tracks. It follows either white or orange diamonds (I think the white lead towards Ice Glen and the orange go to the tower). The trail climbs over multiple switchbacks as it weaves around large rocks.
Eventually, the trail reaches the base of the tower. The ladder to ascend the tower is steep, so use caution. At the top of the tower, there's a compass plate that tells which mountains you're looking at. You either have the option of turning back down the same trail or continuing farther along the Beartown Forest Connector